Learn any subject in three steps: read short lessons, play a game board, then prove what you know. Lessons and play are free — no account needed to start.
A free account keeps your progress in one place: lessons finished, your tier, and your certificates. It follows you to any device where you sign in. Sign in with Google, or with email and a password. Lessons and play stay free with or without an account.
Connecting to the account service…
— or use email —
No studies in progress yet. Open any pack, read its lessons, and your progress lands here.
Every certificate has an ID and a short code, printed on it. Enter both to check it. It works signed out, on any device. If the code doesn't match, the certificate comes back NOT FOUND.
Learners form study circles around a subject, trade questions, and keep each other going.
Pick a pack, invite study partners, and work the same boards together. Circles live in our Facebook group.
Join the Facebook groupTap a subject. Its lessons open first — five short lessons, each taught two ways. Read the lessons, then play the board.
Every subject has 250+ practice questions, played on boards of 25. Free to open and play.
No match in either place. Try another word — or use the two doors on this page: suggest it for everyone, or propose it for you, now.
Testing & Practice — $1, once, for life. It unlocks Strict Testing: 30 seconds per question, no hints, no retries, one try per pack, then a pass/fail report (70% is the usual bar). Regular play stays free.
This door is for everyone. It is slow. Write a subject below. It goes on the review list. Nothing is built yet. If we approve it, we make it into a question pack for everyone.
We read each one. We can approve it, ask for more, or say no. This list stays in this tab. Download or copy it to save it.
No suggestions yet. Yours can be first.
This door is fast. It is only for you. Type a study name. We check the catalogue first. If we already have it, you get that study. If it is new, the engine builds your own copy right away.
New studies are labeled “engine-built.” A course study is not a degree, and it is not a certificate. If the engine cannot build yours, it goes to the review list at the bottom of this section instead.
These studies are already made. Each one has two courses on one subject. Add one to your list. Or propose a new one below.
New: four art studies. Drawing foundations. Color & painting. Art history. Comics craft.
New: two music studies. Music theory. Music production.
New: three studies that arrived by request. Creative Writing Media. Medical Billing and Coding. Physical Therapist Assistant.
No match. Propose it below. We check the catalogue first. If it is new, the engine builds your copy right away. It only waits for review if the engine cannot build it.
Studies you add or build land here.
Studies from the catalogue sit in the Full Course Studies tier ($5, once, for life). Engine-built studies are your own copies, saved in this browser, labeled “Engine-built · personal study.” A course study is not a degree or a certificate.
Most studies do not come here. A study only lands here if there is no match and the engine cannot build it. Then we read it by hand. We can approve it, ask for more, or say no. This list stays in this tab. Download or copy it to save it.
Nothing is waiting here. Most new studies are built right away.
A separate shelf for adults only, kept apart from the main catalogue and out of general search. What's here is grown-up education: sexual health, adult anatomy, relationships, adult wellness, and adult art instruction (every character depicted is an adult). Text only. No explicit imagery. While it's locked, you see only this door — never the titles or lessons.
This shelf is locked.
Age checking starts free — a free checker, Didit, covers the beginning. The first $100 this project earns, out of its first $300, is set aside for the later shift to the paid checker — about $25 a month, 4 months covered.
$0 raised of $100 goal
Tip jar — help foot the billChipping in grows the fund. It does not buy access — when the shelf opens, everyone still verifies.
Age verification is free to start: a free checker, Didit, covers the beginning, so the shelf can open without waiting on money.
The fund still matters: the first $100 of the project's first $300 earned buys the later shift to the paid checker — about $25 a month, 4 months covered — so the door never has to depend on a free service lasting.
Entry takes BOTH a passed age check (18+) AND the After Dark subscription — $10 a month. The subscription opens when age verification goes live; until then the shelf stays locked for everyone.
You verify with the checker, on its own hosted pages. This app only ever gets a pass or a fail. It never sees or stores your ID or birthdate.
Chipping in does not buy access. Until the shelf opens, it stays locked for everyone — no exceptions, no back door.
A peek at the menu: titles and one plain line each. No lessons, no questions, nothing explicit. This toggle is a preview, not verification. Entry still takes a passed age check and the $10/month After Dark subscription, which opens when age verification goes live.
Like what you see? Age checking starts free with Didit. The fund — the first $100 of the project's first $300 earned — buys the later shift to the paid checker, about $25 a month, 4 months covered.
$0 raised of $100 goal
Tip jar — help foot the billChipping in grows the fund. It does not buy access — when the shelf opens, everyone still verifies.
Want a study that isn't on the menu? Request it here. Requests are saved for the day the shelf opens — nothing is built or shown while it's locked. Anything involving minors is refused outright, no exceptions.
Adults only — educational material. Text only: no explicit imagery, ever. Every person or drawn character in these studies is an adult.
After Dark is a premium shelf: $10 a month, separate from Testing & Practice. The subscription opens when age verification goes live — there is no way to pay or slip in before then, for anyone.
One more step: verify your age with Didit, our age checker. The button takes you to Didit's hosted check; when you're done it brings you back here. This app only gets a pass or a fail — it never sees or stores your ID or birthdate.
Pricing — one-time unlocks, no subscriptions
Pay once, keep it for life. Never a subscription. Play is free. Testing & Practice is $1. Full Course Studies is $5. Certifications & Degrees will be $10 when they launch.
Free forever
$0
FreeOne-time unlock
$1 — once, for life
$1 onceOne-time unlock
$5 — once, for life
$5 onceFuture tier
$10 — once, for life · when it launches
How paying works: the $1 button below opens Stripe checkout in a new tab. Use the same email as your Tinoco account at checkout, come back, and press “Paid? Verify & Activate Testing & Practice” — paid status is checked against your Stripe purchase record through our payments bridge, and the tier saves to your account, so it follows you across devices. Payment verification is still being connected on our side — until it lands, your purchase stays traced to the email you use at checkout, exactly as your Stripe receipt records it.
Every topic starts at 250 questions. From the board, you can grow a topic to 2,000. The library has no cap — it keeps growing as new questions and subjects are added.
Each 250-question block is built from 25 core questions, practiced from many angles: straight recall, reverse match, category checks, odd-one-out, and paired clues. Every topic has 2 core sets today — 50 core questions.
Past 2,000, a bank is surplus: growing one topic to 10,000 questions costs $20. That deep scale is a preview price for now — there is no checkout for it yet, so picking it takes no payment.
Full Course Studies works the same way: pay $5 on Stripe with the email on your Tinoco account, come back, and press “Paid? Verify & Activate Full Course Studies” — the bridge checks your Stripe purchase record for that email. While verification is still being connected, purchases stay traced to the checkout email, exactly as the Stripe receipt records it.
Paid under a different email than your Tinoco account? Link it: we email a sign-in link to the purchase email to prove that inbox is yours, then the bridge records both emails on your purchase. Nothing about your purchase changes — it just becomes findable from this account.
Turn your own notes into a Jeopardy board. Paste term-and-meaning cards below. This preview is free — no payment, no purchase.
Heads-up: live web research isn't on in this preview. The button finds a close match among the 50 ready packs. No match? Use your own notes below.
All subjects Course study
Course study · two mirror courses, one subject
Each circle is one full version of this course. Where they overlap is true understanding.
All subjects Course study Game board
Preset study pack
Correct answers add the clue value; misses subtract it. After five clues, you can finish the round.